Although hesitated to buy it because the price is somewhat high, I was surprised by the stability feeling when sitting when sitting more than anything I could handle any kind of work because the height adjustment was finely changed. (There was little rattling when sitting at a high position.)
I think that it will be possible to consider re-purchasing in the future.
I have used it for a long time, but since the seat part was broken, I replaced it. It seems that improvement has been done and it has become very strong. It is suitable for work that has to stand or sit.